I12
Hypertensive chronic kidney disease
Choose the additional character
I12 needs more characters to be billable. Pick the specific code below.
This code does not map to a risk-adjusting HCC in the loaded models.
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
any condition in N18 and N26 - due to hypertension arteriosclerosis of kidney arteriosclerotic nephritis (chronic) (interstitial) hypertensive nephropathy nephrosclerosis
hypertension due to kidney disease (I15.0, I15.1) renovascular hypertension (I15.0) secondary hypertension (I15.-)
acute kidney failure (N17.-)
certain conditions originating in the perinatal period (P04-P96) certain infectious and parasitic diseases (A00-B99) complications of pregnancy, childbirth and the puerperium (O00-O9A) congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) endocrine, nutritional and metabolic diseases (E00-E88) injury, poisoning and certain other consequences of external causes (S00-T88) neoplasms (C00-D49) symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) systemic connective tissue disorders (M30-M36) transient cerebral ischemic attacks and related syndromes (G45.-)
Official Guidelines for I12
FY 2026 ›Sections that reference I12
- I.C.9.a.2)Hypertensive Chronic Kidney Disease
Assign codes from category I12, Hypertensive chronic kidney disease, when both hypertension and a condition classifiable to category N18, Chronic kidney …
- I.C.9.a.3)Hypertensive Heart and Chronic Kidney Disease
… The Includes note at I13 specifies that the conditions included at I11 and I12 are included together in I13. …
- I.C.9.a.5)Hypertensive Retinopathy
Subcategory H35.0, Background retinopathy and retinal vascular changes, should be used along with a code from categories I10 – I15, in the Hypertensive diseases section, to include the systemic hypertension. …
- I.C.9.a.8)Hypertension, Controlled
… Assign the appropriate code from categories I10-I15, Hypertensive diseases.
- I.C.9.a.9)Hypertension, Uncontrolled
… In either case, assign the appropriate code from categories I10-I15, Hypertensive diseases.
- I.C.9.a.10)Hypertensive Crisis
… Code also any identified hypertensive disease (I10- I15). …
Sections whose FY 2026 text names I12, its I12 category, or a range containing it — the chapter guidance above is the authoritative source.